Weakness (CWE)
CWE-79: Cross-site Scripting
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
How to prevent it (8 mitigations)
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Architecture and Design
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482].
Examples of libraries and frameworks that make it easier to generate properly encoded output include Microsoft's Anti-XSS library, the OWASP ESAPI Encoding module, and Apache Wicket.
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Implementation, Architecture and Design
Understand the context in which your data will be used and the encoding that will be expected. This is especially important when transmitting data between different components, or when generating outputs that can contain multiple encodings at the same time, such as web pages or multi-part mail messages. Study all expected communication protocols and data representations to determine the required encoding strategies.
For any data that will be output to another web page, especially any data that was received from external inputs, use the appropriate encoding on all non-alphanumeric characters.
Parts of the same output document may require different encodings, which will vary depending on whether the output is in the:
- HTML body
- Element attributes (such as src="XYZ")
- URIs
- JavaScript sections
- Cascading Style Sheets and style property
etc. Note that HTML Entity Encoding is only appropriate for the HTML body.
Consult the XSS Prevention Cheat Sheet [REF-724] for more details on the types of encoding and escaping that are needed.
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Architecture and Design, Implementation
Understand all the potential areas where untrusted inputs can enter your software: parameters or arguments, cookies, anything read from the network, environment variables, reverse DNS lookups, query results, request headers, URL components, e-mail, files, filenames, databases, and any external systems that provide data to the application. Remember that such inputs may be obtained indirectly through API calls.
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Architecture and Design
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
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Architecture and Design
If available, use structured mechanisms that automatically enforce the separation between data and code. These mechanisms may be able to provide the relevant quoting, encoding, and validation automatically, instead of relying on the developer to provide this capability at every point where output is generated.
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Implementation
Use and specify an output encoding that can be handled by the downstream component that is reading the output. Common encodings include ISO-8859-1, UTF-7, and UTF-8. When an encoding is not specified, a downstream component may choose a different encoding, either by assuming a default encoding or automatically inferring which encoding is being used, which can be erroneous. When the encodings are inconsistent, the downstream component might treat some character or byte sequences as special, even if they are not special in the original encoding. Attackers might then be able to exploit this discrepancy and conduct injection attacks; they even might be able to bypass protection mechanisms that assume the original encoding is also being used by the downstream component.
The problem of inconsistent output encodings often arises in web pages. If an encoding is not specified in an HTTP header, web browsers often guess about which encoding is being used. This can open up the browser to subtle XSS attacks.
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Implementation
With Struts, write all data from form beans with the bean's filter attribute set to true.
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Implementation
To help mitigate XSS attacks against the user's session cookie, set the session cookie to be HttpOnly. In browsers that support the HttpOnly feature (such as more recent versions of Internet Explorer and Firefox), this attribute can prevent the user's session cookie from being accessible to malicious client-side scripts that use document.cookie. This is not a complete solution, since HttpOnly is not supported by all browsers. More importantly, XmlHttpRequest and other powerful browser technologies provide read access to HTTP headers, including the Set-Cookie header in which the HttpOnly flag is set.
Source: MITRE CWE-79
2,694 results · Clear filters · Feed
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Low 3.5
SourceCodester Best Courier Management System Manage Account Page cross site scripting
A vulnerability, which was classified as problematic, has been found in SourceCodester Best Courier Management System 1.0. This issue affects some unknown processing of the component Manage Account Page. The manipulation of the argument First Name leads to cr…
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Low 2.4
BEECMS cross site scripting
** UNSUPPORTED WHEN ASSIGNED ** A vulnerability, which was classified as problematic, was found in BEECMS 4.0. This affects an unknown part of the file /admin/admin_content_tag.php?action=save_content. The manipulation of the argument tag leads to cross site …
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Low 3.5
SourceCodester Expense Tracker App Category add_category.php cross site scripting
A vulnerability, which was classified as problematic, has been found in SourceCodester Expense Tracker App v1. Affected by this issue is some unknown functionality of the file add_category.php of the component Category Handler. The manipulation of the argumen…
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Low 3.5
SourceCodester Best Courier Management System manage_parcel_status.php cross site scripting
A vulnerability classified as problematic was found in SourceCodester Best Courier Management System 1.0. This vulnerability affects unknown code of the file manage_parcel_status.php. The manipulation of the argument id leads to cross site scripting. The atta…
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Low 3.7
plone.restapi vulnerable to Stored Cross Site Scripting with SVG image in user portrait
### Impact There is a stored cross site scripting vulnerability for SVG images uploaded in user portraits. Note that a page that uses an image tag with an SVG image as source is never vulnerable, even when the SVG image contains malicious code. To exploit the…
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Low 3.7
Zope vulnerable to Stored Cross Site Scripting with SVG images
Zope is an open-source web application server. Prior to versions 4.8.10 and 5.8.5, there is a stored cross site scripting vulnerability for SVG images. Note that an image tag with an SVG image as source is never vulnerable, even when the SVG image contains ma…
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Low 3.7
plone.namedfile vulnerable to Stored Cross Site Scripting with SVG images
plone.namedfile allows users to handle `File` and `Image` fields targeting, but not depending on, Plone Dexterity content. Prior to versions 5.6.1, 6.0.3, 6.1.3, and 6.2.1, there is a stored cross site scripting vulnerability for SVG images. A security hotfix…
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Low 3.5
Cross-site Scripting in M4 PDF plugin for Prestashop sites
M4 PDF plugin for Prestashop sites, in its 3.2.3 version and before, is vulnerable to an arbitrary HTML Document crafting vulnerability. The resource /m4pdf/pdf.php uses templates to dynamically create documents. In the case that the template does not exist, …
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Low 3.9
Cross-site Scripting (XSS) - Reflected in hestiacp/hestiacp
Cross-site Scripting (XSS) - Reflected in GitHub repository hestiacp/hestiacp prior to 1.8.8.
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Low 3.5
In JetBrains TeamCity before 2023.05.4 stored XSS was possible during nodes configuration
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Low 3.5
Tongda OA cross site scripting
A vulnerability classified as problematic has been found in Tongda OA 11.10. Affected is an unknown function of the file /general/ipanel/menu_code.php?MENU_TYPE=FAV. The manipulation of the argument OA_SUB_WINDOW leads to cross site scripting. It is possible …
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Low 3.5
KOHA MARC search.pl cross site scripting
A vulnerability was found in KOHA up to 23.05.03. It has been declared as problematic. This vulnerability affects unknown code of the file /cgi-bin/koha/catalogue/search.pl of the component MARC. The manipulation leads to cross site scripting. The attack can …
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Low 3.5CVE-2023-5024 Public exploit
Planno Comment cross site scripting
A vulnerability was found in Planno 23.04.04. It has been classified as problematic. This affects an unknown part of the component Comment Handler. The manipulation leads to cross site scripting. It is possible to initiate the attack remotely. The exploit has…
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Low 3.5
SourceCodester AC Repair and Services System cross site scripting
A vulnerability, which was classified as problematic, was found in SourceCodester AC Repair and Services System 1.0. Affected is an unknown function of the file admin/?page=system_info/contact_information. The manipulation of the argument telephone/mobile/add…
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Low 3.5
UCMS cross site scripting
A vulnerability was found in UCMS 1.4.7. It has been classified as problematic. Affected is an unknown function of the file ajax.php?do=strarraylist. The manipulation of the argument strdefault leads to cross site scripting. It is possible to launch the attac…
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Low 2.6
Pluck CMS Installation install.php cross site scripting
A vulnerability has been found in Pluck CMS 4.7.18 and classified as problematic. This vulnerability affects unknown code of the file install.php of the component Installation Handler. The manipulation of the argument contents with the input <script>alert('xs…
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Low 3.5CVE-2023-4973 Scanner template
Academy LMS GET Parameter filter cross site scripting
A vulnerability was found in Academy LMS 6.2 on Windows. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file /academy/tutor/filter of the component GET Parameter Handler. The manipulation of the argument…
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Low 2.0
Cross Site Scripting (XSS) Issue on "Client Based Authentication Policy Configuration" Screen
A cross site scripting issue was discovered with the pagination function on the "Client-based Authentication Policy Configuration" screen of the GreenRADIUS web admin interface. This issue is found in GreenRADIUS v5.1.1.1 and prior. A fix was included in v5.1…
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Low 3.5
Cross-site Scripting (XSS) - Stored in instantsoft/icms2
Cross-site Scripting (XSS) - Stored in GitHub repository instantsoft/icms2 prior to 2.16.1.-git.
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Low 3.5
SourceCodester Contact Manager App Contact Information index.php cross site scripting
A vulnerability classified as problematic has been found in SourceCodester Contact Manager App 1.0. This affects an unknown part of the file index.php of the component Contact Information Handler. The manipulation of the argument contactID with the input "><s…
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Low 3.5
SourceCodester Take-Note App index.php cross site scripting
A vulnerability, which was classified as problematic, was found in SourceCodester Take-Note App 1.0. This affects an unknown part of the file index.php. The manipulation of the argument noteContent with the input <script>alert('xss')</script> leads to cross s…
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Low 3.5
SourceCodester Simple Book Catalog App Update Book Form cross site scripting
A vulnerability classified as problematic has been found in SourceCodester Simple Book Catalog App 1.0. Affected is an unknown function of the component Update Book Form. The manipulation of the argument book_title/book_author leads to cross site scripting. I…
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Low 3.1
TOTVS RM Portal Login.aspx cross site scripting
A vulnerability classified as problematic has been found in TOTVS RM 12.1. Affected is an unknown function of the file Login.aspx of the component Portal. The manipulation of the argument VIEWSTATE leads to cross site scripting. It is possible to launch the a…
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Low 3.5
Infosoftbd Clcknshop all cross site scripting
A vulnerability was found in Infosoftbd Clcknshop 1.0.0. It has been declared as problematic. This vulnerability affects unknown code of the file /collection/all. The manipulation of the argument q leads to cross site scripting. The attack can be initiated re…
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Low 3.5
Doc2k RE-Chat re_chat.js cross site scripting
A vulnerability was found in Doc2k RE-Chat 1.0. It has been classified as problematic. This affects an unknown part of the file js_on_radio-emergency.de_/re_chat.js. The manipulation leads to cross site scripting. It is possible to initiate the attack remotel…
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Low 3.5
SourceCodester Inventory Management System suppliar_data.php cross site scripting
A vulnerability has been found in SourceCodester Inventory Management System 1.0 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file suppliar_data.php. The manipulation of the argument name/company leads to cr…
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Low 3.5
SPA-Cart eCommerce CMS search cross site scripting
A flaw has been found in SPA-Cart eCommerce CMS 1.9.0.3. The affected element is an unknown function of the file /search. This manipulation of the argument filter[brandid]/filter[price] causes cross site scripting. The attack is possible to be carried out rem…
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Low 3.5
NeoMind Fusion Platform Link cross site scripting
A vulnerability, which was classified as problematic, was found in NeoMind Fusion Platform up to 20230731. Affected is an unknown function of the file /fusion/portal/action/Link. The manipulation of the argument link leads to cross site scripting. It is possi…
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Low 3.5
In JetBrains TeamCity before 2023.05.3 reflected XSS was possible during user registration
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Low 3.5CVE-2023-4382 Public exploit
tdevs Hyip Rio Profile Settings settings cross site scripting
A vulnerability, which was classified as problematic, has been found in tdevs Hyip Rio 2.1. Affected by this issue is some unknown functionality of the file /user/settings of the component Profile Settings. The manipulation of the argument avatar leads to cro…
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Low 3.5
phpRecDB index.php cross site scripting
A vulnerability was found in phpRecDB 1.3.1. It has been rated as problematic. Affected by this issue is some unknown functionality of the file /index.php. The manipulation of the argument r/view leads to cross site scripting. The attack may be launched remot…
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Low 3.5
Notes attachment render HTML in preview mode
Notes is a note-taking app for Nextcloud, an open-source cloud platform. Starting in version 4.4.0 and prior to version 4.8.0, when creating a note file with HTML, the content is rendered in the preview instead of the file being offered to download. Nextcloud…
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Low 3.5
mooSocial mooTravel cross site scripting
A vulnerability was found in mooSocial mooTravel 3.1.8 and classified as problematic. Affected by this issue is some unknown functionality. The manipulation leads to cross site scripting. The attack may be launched remotely. VDB-236210 is the identifier assig…
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Low 3.5
mooSocial mooStore cross site scripting
A vulnerability has been found in mooSocial mooStore 3.1.6 and classified as problematic. Affected by this vulnerability is an unknown functionality. The manipulation leads to cross site scripting. The attack can be launched remotely. The identifier VDB-23620…
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Low 3.5
mooSocial mooStore index cross site scripting
A vulnerability, which was classified as problematic, was found in mooSocial mooStore 3.1.6. Affected is an unknown function of the file /search/index. The manipulation of the argument q leads to cross site scripting. It is possible to launch the attack remot…
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Low 3.5
DedeBIZ Article cross site scripting
A vulnerability was found in DedeBIZ 6.2.10. It has been rated as problematic. Affected by this issue is some unknown functionality of the component Article Handler. The manipulation leads to cross site scripting. The attack may be launched remotely. The expl…
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Low 3.5
Cross-site Scripting (XSS) - Stored in instantsoft/icms2
Cross-site Scripting (XSS) - Stored in GitHub repository instantsoft/icms2 prior to 2.16.1-git.
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Low 3.5
Media Browser Emby Server cross site scripting
A vulnerability was found in Media Browser Emby Server 4.7.13.0 and classified as problematic. This issue affects some unknown processing of the file /web/. The manipulation leads to cross site scripting. The attack may be initiated remotely. The exploit has …
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Low 3.5
Cute Http File Server Search cross site scripting
A vulnerability, which was classified as problematic, was found in Cute Http File Server 2.0. This affects an unknown part of the component Search. The manipulation leads to cross site scripting. It is possible to initiate the attack remotely. The exploit has…
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Low 3.5CVE-2023-4110 Scanner template
PHP Jabbers Availability Booking Calendar index.php cross site scripting
A vulnerability has been found in PHP Jabbers Availability Booking Calendar 5.0 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file /index.php. The manipulation of the argument session_id leads to cross site s…